KR970048576A - Electronic control unit tester using liquid crystal display - Google Patents

Electronic control unit tester using liquid crystal display Download PDF

Info

Publication number
KR970048576A
KR970048576A KR1019950061942A KR19950061942A KR970048576A KR 970048576 A KR970048576 A KR 970048576A KR 1019950061942 A KR1019950061942 A KR 1019950061942A KR 19950061942 A KR19950061942 A KR 19950061942A KR 970048576 A KR970048576 A KR 970048576A
Authority
KR
South Korea
Prior art keywords
signal
liquid crystal
crystal display
data
control unit
Prior art date
Application number
KR1019950061942A
Other languages
Korean (ko)
Other versions
KR100242074B1 (en
Inventor
이상호
Original Assignee
전성원
현대자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950061942A priority Critical patent/KR100242074B1/en
Publication of KR970048576A publication Critical patent/KR970048576A/en
Application granted granted Critical
Publication of KR100242074B1 publication Critical patent/KR100242074B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
    • G01R13/401—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for continuous analogue, or simulated analogue, display
    • G01R13/403—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for continuous analogue, or simulated analogue, display using passive display devices, e.g. liquid crystal display or Kerr effect display devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/3181—Functional testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

이 발명은 액정 표시장치를 이용한 전자 제어유닛 시험장치에 관한 것으로, 차량의 각종 정보를 입력받고, 각종 제어신호를 출력하는 중앙처리장치와; 상기 중앙저리장치의 3개의 핀으로부터 클럭신호, 데이터 신호, 스트로보 신호를 입력받아 8개의 병렬 데이터신호로 출력하기 위한 버퍼 수단과; 상기 중앙처리장치로부터 명령어/데이터 선택신호와 인에이블 신호를 입력받고, 상기 버퍼 수단으로부터 데이터 신호를 입력받아 화면으로 정보를 표시하기 위한 액정표시장치를 포함하여 구성되어, 전자제어유닛 내의 중앙처리장치의 4개의 핀만으로 액정표시장치를 통해 차량의 각종 정보를 편리하게 볼 수가 있으므로, 회로가 간단해진 액정표시장치를 이용한 전자제어유닛 시험장치에 관한 것이다.The present invention relates to an electronic control unit test apparatus using a liquid crystal display device, comprising: a central processing unit which receives various information of a vehicle and outputs various control signals; Buffer means for receiving clock signals, data signals, and strobe signals from three pins of the central storage device and outputting the same as eight parallel data signals; And a liquid crystal display for receiving a command / data selection signal and an enable signal from the central processing unit, receiving a data signal from the buffer means, and displaying information on a screen. The electronic control unit test apparatus using a liquid crystal display device, in which a circuit is simplified, can be conveniently viewed through the liquid crystal display device using only four pins.

Description

액정표시장치를 이용한 전자제어유닛 시험장치Electronic control unit tester using liquid crystal display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 이 발명의 실시예에 따른 액정표시장치를 이용한 전자제어유닛 시험장치의 구성도.1 is a block diagram of an electronic control unit test apparatus using a liquid crystal display device according to an embodiment of the present invention.

제2도는 이 발명의 실시예에 따른 액정표시장치를 이용한 전자제어유닛 시험장치의 동작 흐름도.2 is an operation flowchart of the electronic control unit test apparatus using the liquid crystal display device according to the embodiment of the present invention.

Claims (5)

차량의 각종 정보를 입력받고, 각종 제어신호를 출력하는 중앙처리장치와; 상기 중앙처리장치의 3개의 핀으로부터 클럭신호, 데이터 신호, 스트로보 신호를 입력받아 8개의 병렬 데이터신호로 출력하기 위한 버퍼수단과; 상기 중앙처리장치로부터 명령어/데이터 선택신호와 인에이블 신호를 입력받고, 상기 버퍼 수단으로 부터 데이터 신호를 입력받아 화면으로 정보를 표시하기 위한 액정표시장치를 포함하여 구성되어 짐을 특징으로 하는 액정표시장치를 이용한 전자제어유닛 시험장치.A central processing unit which receives various information of the vehicle and outputs various control signals; Buffer means for receiving a clock signal, a data signal, and a strobe signal from three pins of the central processing unit and outputting the same as eight parallel data signals; And a liquid crystal display for receiving a command / data selection signal and an enable signal from the central processing unit, receiving a data signal from the buffer means, and displaying information on a screen. Electronic control unit testing device using. 제1항에 있어서, 상기한 액정표시장치의 구동은 프로그램을 통해 이루어지는 것을 특징으로 하는 액정표시장치를 이용한 전자제어유닛 시험장치.The electronic control unit test apparatus using the liquid crystal display device according to claim 1, wherein the liquid crystal display device is driven by a program. 제1항에 있어서, 상기한 중앙처리장치는 4개의 포트로 신호를 출력하며, 첫번째 신호는 액정표시장치의 데이터/명령어 선택신호(4), 두번째 신호는 스트로보신호(strobe) 또는 액정표시장치(103)의 인에이블 신호(6)로 동작하는 신호이고, 세번째 데이터 신호(data)이고, 네번째 신호는 클럭신호(clock)인 것을 특징으로 하는 액정표시장치를 이용한 전자제어유닛 시험장치.2. The CPU of claim 1, wherein the central processing unit outputs signals to four ports, the first signal being a data / command selection signal 4 of the liquid crystal display device, and the second signal being a strobe signal or a liquid crystal display device. An electronic control unit test apparatus using a liquid crystal display device, characterized in that the signal is operated with the enable signal (6) of 103, the third data signal (data), and the fourth signal is a clock signal. 제1항에 있어서, 상기한 버퍼수단은 집적회로(4094)인 것을 특징으로 하는 액정표시장치를 이용한 전자제어유닛 시험장치.The electronic control unit test apparatus according to claim 1, wherein the buffer means is an integrated circuit (4094). 제1항에 있어서, 상기한 중앙처리장치에서 집적회로로 직렬 데이터를 보내면, 스트로보신호(strobe)에 의해 병렬로 데이터(D1-D8)가 전환되어 출력되는 것을 특징으로 하는 액정표시장치를 이용한 전자제어유닛 시험장치.The electronic device of claim 1, wherein when the serial data is sent from the central processing unit to the integrated circuit, data D 1 to D 8 are converted and output in parallel by a strobe signal. Control unit tester. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950061942A 1995-12-28 1995-12-28 Ecu tester using lcd KR100242074B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950061942A KR100242074B1 (en) 1995-12-28 1995-12-28 Ecu tester using lcd

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950061942A KR100242074B1 (en) 1995-12-28 1995-12-28 Ecu tester using lcd

Publications (2)

Publication Number Publication Date
KR970048576A true KR970048576A (en) 1997-07-29
KR100242074B1 KR100242074B1 (en) 2000-02-01

Family

ID=19446072

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950061942A KR100242074B1 (en) 1995-12-28 1995-12-28 Ecu tester using lcd

Country Status (1)

Country Link
KR (1) KR100242074B1 (en)

Also Published As

Publication number Publication date
KR100242074B1 (en) 2000-02-01

Similar Documents

Publication Publication Date Title
KR960024879A (en) Display apparatus and driving circuit test method and system
KR910014951A (en) Memory tester
KR910003563A (en) LCD Display
KR950704744A (en) METHOD AND APPARATUS FOR PROVIDING FAST MULTI-COLOR STORAGE IN A FRAME BUFFER
KR970029883A (en) Test circuit and method of semiconductor memory device with high frequency operation
KR860000564A (en) Testable System
KR970048576A (en) Electronic control unit tester using liquid crystal display
KR910012752A (en) Small LCD Module Tester
KR970022355A (en) I / O devices in integrated circuits
KR970029279A (en) Data Enable Mode Priority Detection Circuit of LCD
KR970012165A (en) Central processing unit signal status monitoring unit
KR970071490A (en) Digital Signal Processor Chip Inspection System for CD-ROM Drives
KR100326116B1 (en) Apparatus of saving data that make module active in board having modules
KR970051236A (en) Cycle time measuring device of semiconductor memory device
KR950009437A (en) Self-diagnosis device of main memory
KR960015570A (en) Internal bus monitor device of integrated circuit
KR950020117A (en) System error indicator
KR880003502A (en) System console automatic tester of electronic exchange
KR960024434A (en) LCD performance tester
KR960041315A (en) Automatic signal switching and control device for measuring test points on a printed circuit board
KR950025516A (en) CDG built-in TV control device and control method
KR890004227A (en) Vacuum Fluorescent Display Device Control Circuit and Control Method in Base Program
KR970012174A (en) Ablation circuit
KR970048725A (en) LCD and its driving method
KR950027410A (en) Inspection device of switching IC

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee